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Effect of occupational exposure to shock and vibration on health in high-performance marine craft occupants
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment ( IF 1.5 ) Pub Date : 2020-12-23 , DOI: 10.1177/1475090220981187
Manudul Pahansen de Alwis 1 , Karl Garme 1
Affiliation  

Working conditions of High-performance Marine Craft (HPMC) occupants are inherent with shock and vibration. Therefore, HPMC occupants are usually investigated believing that their psychophysical health and performance are negatively affected by exposure to these conditions. However, the association between the regular occupational vibration exposures of HPMC occupants and the deterioration of their health and performance is disputable.

Therefore, a sample of HPMC occupants are investigated in a prospective cohort study by measuring perceived work exposure, health and performance via validated web-based questionnaires and physical work exposure as vibration using measurement systems installed onboard their craft. Incidence of musculoskeletal pain (MSP) during four operational seasons is determined and presented as incidence proportion (IP). Association between accumulated vibration exposure aboard HPMC and incidence of MSP is systematically assessed using multiple logistic regression models and expressed as odds ratio (OR). Moreover, the correlation between objectively and subjectively measured vibration exposures is determined using the Spearman’s rank correlation coefficient (rs).

Incidence proportion of neck pain was 63.4% and that of lower back pain ranged from 12.5% to 87.5% over the four seasons. The accumulated vibration exposure was strongly associated with the incidence of MSP primarily with lower back pain. However, the association was not statistically significant. The objective and subjective vibration exposures of the craft drivers showed a statistically significant positive monotonic correlation.

The study suggests that occupational exposure to shock and vibration aboard HPMC is a factor increasing the incidence of MSP. The HPMC occupants regularly experience attrition in their performance. The perceived vibration exposure of the drivers can be used to rank the exposure severity aboard HPMC in the absence of objective measurements. The current vibration exposure assessment methods are also recommended to be revised accounting for shock and vibration inherent in HPMC exposures.



中文翻译:

职业性冲击和振动暴露对高性能船员的健康影响

高性能海洋航行器(HPMC)乘员的工作条件固有于冲击和振动。因此,通常对HPMC乘员进行调查,认为他们的心理和健康状况会受到这些条件的负面影响。但是,HPMC乘员的定期职业振动暴露与其健康和性能下降之间的关联是有争议的。

因此,在一项前瞻性队列研究中,通过使用经过验证的基于网络的问卷调查来测量感知的工作暴露,健康和绩效,并使用安装在其手工艺品上的测量系统来测量振动引起的身体工作暴露,从而对HPMC居住者样本进行了调查。确定了四个手术季节的肌肉骨骼疼痛(MSP)发生率,并以发生率(IP)表示。HPMC上累积的振动暴露与MSP发生率之间的关联使用多个逻辑回归模型进行系统评估,并表示为优势比(OR)。此外,使用Spearman秩相关系数(r s)确定客观和主观测量的振动暴露之间的相关性。

在四个季节中,颈部疼痛的发生率是63.4%,而下背部疼痛的发生率在12.5%至87.5%之间。累积的振动暴露与MSP的发生密切相关,主要是下背部疼痛。但是,该关联在统计上并不显着。工艺驾驶员的主观和主观振动暴露显示出统计学上显着的正单调相关性。

该研究表明,在HPMC上职业暴露于冲击和振动是增加MSP发生率的因素。HPMC的乘员会定期遭受磨损。在没有客观测量的情况下,驾驶员感觉到的振动暴露可用于对HPMC上的暴露严重程度进行排名。还建议修订当前的振动暴露评估方法,以解决HPMC暴露固有的冲击和振动问题。

更新日期:2020-12-24
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